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<p>Reports a <b>null</b> check followed by an <b>instanceof</b> check.
Since the <b>instanceof</b> operator always returns <b>false</b> for <b>null</b>,
there is no need to have an additional <b>null</b> check. </p>
<p>Here is an example of a violation: </p>
<pre><code>    if (x != null && x instanceof String) { ... }</code></pre>
<p>The quickfix changes this code to:</p>
<pre><code>    if (x instanceof String) { ... }</code></pre>
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